Equation or not?

[Arno K]

Ah, now I see, continue(2) continues the outer loop, so it finds more than one occurance of "=", but that is easily done:

PHP Code:

EXPORT findeq()
BEGIN
local m,p,j;
L0:={"x+y=1","2x+2y<2","3x+3y=3","4x+4y≤4","5x+5y>5","6x+6y>=6","7x+7y≥7","8x+8y<>8","9x+9y≠9"};
m:=size(L0);
p:={};

for j from 1 to m do

L0(j):=CAS.expr(L0(j));
IF (CAS.part(L0(j),0) == "==") THEN p:= CAS.Concat(p,j);END;

end;

return(p);


END; 


so now it returns the same list.
Arno